Improvement in drain-pipe machines



NA PERES. PHDTO-LITHOGRAPHER wASHmGTaN D C .To 'all whom 'it may concern or suitable material of theannular space between p central core of the pipe, which is a tedious andlabcriousoperation,

`tion and operation.

parts, as shown,

`the plunger-s D and arrastra Hire,

QPETERMCINTYRE, or Nonwrg CONNECTICUT.

4 Letters .Patent No. 97,668, dated Deccmber, 1869.

Man-

` y IMPROVEMENT IN :naam-PIPE MACHINES.

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The Schedule referred to in these Lettera Patent and making part of the rame Be it known thatI, PETER MCINTYRE, of the city of Norwich, county of New London, and State of Connecticut,vhave invented a new and useful Machine for Making Drain-Pipe of Hydraulic Cement or othersuitablesubstance while in aplastic condition; and I do l hereby declaretha't thef'ollowing is a full, clear, and exact description of the construction and operation of being hadt'o theaccompa-` nying drawings,and to the figures andletters marked saidinvention, reference lthereon, and in which- Figure 1 is a'fiontielevation.

Figure 2, a side elevation. Figure 3, a vertical section `through the axis of the pipe-mould.

Figure 4, a top `view of' ,the gearing. l Figure 5, a-top view of' ,the pipe-mould. p Figure 6, sectionthrough axis of driving-shaft, showing how the `gears, are engaged and disengaged.

Figure 7, a side elevation of the wallower. and pipecore rack. V The same partsare indicated by the same letters in all the figures. p The nature of my invention consists in such combination and arrangement of' suitable` moulds and machinery as will produce drain-pi pes, oi' hydraulic cement analogous Icharacter, whilein a plastic condition. i v

Heretofore, drain-pipes have been exclusively made. by manual labor, the material being rammed down into the outer mould and the and for the most part defective in resnit.'l p

'lo enable others skill'edinthe art to .make and use my invention., I` will proceed to' describe its construc- I make the outer mould .A A of` the pipe of metal, with a smooth central cavity, of the necessary length,

size, and shape, for the'exterior of the proposed pipe.

This mould is divided longitudinally into two equal which are readily secured to each other by the hooks and pins a a,`and also by the capthe end of the4 pipe, which .is the sides ofthe mould A A, and is secured to Ythem by the catches and pins c c, which is effected by a partial rotationof the cap-piece B upon the mould A A. Y i

` The mould A A is also secured to the bed-piece C,

which is attached to the top floor or frame ofthe machine by means of the holders l [l and guide-pins e e.

The interior of the pipe is' made bythe action of rlhe plunger E is a hollow cylinder, and throughit vthe plunger' 1) is'made to pass. Both these plungersjnove upward at the same time, but the plunger E, which forms lthe bell-month of the pipe, having a short motion, is quickly elevated to the proper height by means of a cam formed upon the side disks of the wallower, as will presently be more fully explained. r)The plunger D is a solid cylinder, corresponding in size to jthe bore of the pipe, and having its upper end conical, as shown, the whole of 'which conical part passes out through the cap-piece B, which has a central opening in it of prop er s ize for that purpose. .i

I prefer to form the bell-mouth action ot' the plunger E, but the part E may be stationary within ,the mould, and attached to the bedf piece C, orbe so attached to it as to permit of a short rotative vibration, when required, to break the adhesion between it and the newly-formed pipe, in which case'the bell-mouth ofthe pipe must be made first by pressing the material into that part of the mould.

The plunger D is attached to the upper end of the rack F, the teeth of which gear or take into the trundles 'or rounds of the wallower G, and is made to work up and down to the necessary extcntby the forward and reverse movements pf the wallower; and the hollow plunger E, for making the bell-mouth ofthe pipe, is attached to and is worked by the the machine, at m, and connecting. with the plunger E below the bed-piece G, by means of' the two studs le. h, on its opposite sides,

of the pipe bythe' lever H, which is composed of two flat bars, pivoted to the framing of the points of' which studs..

enter into short horizontal grooves in the lower part of the plunger, as shown in rotative movement or vibration on its axis, to break the adhesion between the newly-formed pipe and the bell-mouth plnn ger, which is accomplished by the handlever I, fig. 4.

The front end of the lever .H is formed into a pair of arms, which rest upon and take into the ,grooved' or slotted part of the cams made in the heads of the wallower G, to raise and retract the bell-mouth plunger E, as shown in fig.t 6.

The machine isl operated'by the crank J, 6u the outer end of the shaft K, either byhantl or by any other convenient first mover. y

Upon this shaft there is 4a fixed pinion, L, and'a loose wheel, M; also ,theV loose wallower G, and the fast clutch-plate, O. v

Parallel with this shaft there `is a second shaft, N, having a wheel, iP,"at one end, into which the pinion L gears, and at its opposite end the pinion (7b-which gears into the loose wheel M on shaft K. Both these `shafts are mounted -in proper bearings, as shown in ii r. 4.

Upon the shaft K is also the slider R, carrying the bayonets .n n, which pass-through the wallower G, and sey've as carriers for it, and combine it with the tig. 3, so as to admit of ai' l clutch-plate O or the loose wheel M, as they are moved toward and made to engage with one or the other, by means of the lever S, iig. 4.

When the bayonets n n enter the holes in the clutchplate O, which is fast upon the shaft K, the wallower will have thesame speed as the crank J, and will therefore have a quick motion, which motion I use for drawing down the plunger D, on completing the pipe; and by moving the lever S in theopposite direction, so as towithdraw the bayonets u n from the clutch-plate 0, and insert them. in the holes made for their reception in the loosewheel M, the wheel M' will thereby become locked to or combined with the wallower G, and

will consequently 'give it the increased power and reduced speed of the wheel' M, according to the relative proportions' of the wheels and pinions used inthe train.

Having thus described the construction and operation of the mechanism, I shall now describe the process of making a drain-pipe therein.

The plungers D and Ebeing at `the lowest position inthe mould A A, I pour or drop into the mould a sufficient quantity of the cement or material for the required pipe, which must be at the time in a soft or plastic condition. I then turn the cranlJ with the increased power of the gearing on the wallower G, forchw the hollow plunger E up into the bell-month of theD pipe, and the plunger l) gradually up to the `necessary height 1n the mould, the surplus material,

it' any, being forced out at the top of the-mould by the conical part of the plunger I), asit passes out` through the cross-piece I5, which completes the pipe. I now reverse the lever S, so as to disengage the wallower G from the wheel M, and engage it -with the clutch O, attached to the 4shaft K; then, on reversing the motion of the' shaft K by the crank J, and, also making a few lateral vibrations of t-he lever I, fig. 3,'

so as to give a small alternate rotative movement to the hollow plunger E of the bell-mouth, and thereby break the adhesion between it and the newly-formed pipe, the plunger Dis first rapidly withdrawn from the mould, or the interior of the newly-formed pipe, during which operation the hollow plunger supports the pipe in the mould, and then the hollow plnn ger E is withdrawn. The rapid descent of the plunger serves to polish or smooth the inside of the pipe.

'Ilo take the pipe from the mould, the cap B is first moved around sufliciently to disengage the catches c c tiom the holding-pins; the side parts A A are then opened and taken off the bed-plate; and lastly, the finished drain-pipe is removed from the machine, and deposited in a convenient place to harden.

After removing the pipe, the several parts of the mould may be immediately put together and in place upon the machine, and vthc operation repeated.

The pipes, by this arrangement and mode of operv ation, are produced with greatrapidity, when compared with hand-labor, and of much better quality.

The machine should be made to receive different sets of moulds and plungers, to suit kthe various sizes of drain-pipe that are required;l but if they are to be very small or very large, it would be advantageous to have the machines of corresponding proportions.

I have herein described au operative machine that has been proved to work well in practice, but as the means described are not the only ones by which the various motions may be produced, I do not confine myself to the exact arrangement of the gearing herein given; for inst-ance, a screw may be substituted for the rack F, and a screw-wheel or a spur-wheel, with a nut in its centre to work on such vertical screw, Vbe substituted for the wallower or spur-wheel G, and one speed only may be used, instead of the fast and slow speeds I have mentioned, and still the operation and result be substantially the same as by the means I have shown and described. I do not, therefore, limit myself to any particular system of gearing, but claim the right, under this patent,` to adopt and use any system of gearing that will best suit the intended purpose.

Having thus described the construction and mode of operating my drain-pipe-moulding machine,

IVhat I claim therein as my own invention, and desire to secure by Letters `Patent, is

1. The combination ofthe Vouter mould with the solid and hollow plungers, for forming and completing v 1the pipe and its bell-mouth at one operation, in the manner and by the means substantially as described. 2. The axial movement of the plunger of the bellmouth, to break the adhesion between the said plunger and the newly-formed pipe, in the manner and for the purpose substantially as described.

3. The combination lof the solid and hollow plungers with the operating-gearing, in such wise as to elevate the hollow plunger to the proper height for the bellmonth, before the solid plunger has advanced any or much .-Jithin the pipe-mould, and retaining it in that position till the solid plunger has completed its full stroke, and is withdrawn from the mould, or nearly so, before dropping thehollow plunger, in the manner and for the purposes substantially as described.

4. The combination of the cap-piece B, pins C,

and hooks V, with the side parts A A, when constructed and arranged to operate as shown and described, for the double purpose ofclampiug said parts A A together, and closing and completing the top of the mould around the plunger, in the manner substantial' y as set forth.

PETER MCINTYRE. VVituesscs:

Jas. B. OOIT,

MICHAEL Lun. 

